52mm 37mm 52mm

2 x Step Up Adapter Ring: 1*a + 1*b Product Name: Step Down Adapter Ring;Lens Side: 52mm/ 2 inch Filter Side: 37mm/ 1.46 inch;Total Size: 55 x 6.5mm/ 2.2 inch x 0.26 inch (D*T) Material: Metal;Color: Black

2 Pcs Accessories: 1 Pcs Step Up Adapter Ring & 1 Pcs Circular Polarising CPL Filter Adapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes. The Bower 37-52mm Step-Up Adapter Ring easily screws onto the front of any 37mm Lens, and allows you to convert to the 52mm threads of accessory items (such as filters, hoods, flashes and lens converters).